<mat-card>
  <mat-card-title>drap list</mat-card-title>
  <mat-card-content>
    <div cdkDropList class="example-list" (cdkDropListDropped)="drop($event)">
      <div class="example-box" *ngFor="let movie of movies" cdkDrag>{{movie}}</div>
    </div>
  </mat-card-content>
</mat-card>